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Transcode - Input files rotation

+ +

Summary

+ This page describe the design principles and notes of new (as in 1.1.0 version) input rotation code. + Input rotation intelligently handles directory containing almost-homogeneous content, and perform + a smart contatenation of inputs (as opposed to "blind cat" previously performed on 1.0.x and former + releases). Application scenario and intended use of new code is described first; this lead to + explanation of design princples. Design notes and some implementation details are then provided. +

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Intended application cases	describe the common use-cases scenario(s) for multiple inputs
Design principles	design principles of input rotation infrastructure
Design notes - probing	design notes about probing and input rotation
Design notes - importing	design notes on how transcode (main program) deals with input rotation

+ +

Intended application cases

+ New input rotation code introduced in 1.1.0 is a revision from the ground up of how multiple input + should be handled in transcode. First and foremost, some basic usage cases are identified: +

+
+ Jack wants to make a video clip from a bunch of JPEG images. +
+
+
+ Tyler records TV using transcode itself, and he wants now to transcode a group of low-compressed AVIs + into XviD. +
+
+
+ Marla has some NUV files and she wants to join them and transcode it to DVD. +
+

+ Some key aspects emerge from examination of intended use cases: +

+
+ Each input file can contains one or more source frame(s). +
+
+
+ Multiple input need to be intelligently merged before to import (think to AVI case). +
+
+
+ New code should handle grafefully and efficiently a lot of input files. +
+

+ +

Design principles

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+ +

Design notes - probing

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+ +

Design notes - decoding

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